Class 556/15 - The heavy metal is bonded directly to the carbon of a -C(=X)- group, wherein X is chalcogen (e.g., cyclopentadienyl manganese dicarbonyl triphenyl phosphine, etc.)

Subclass of Class 556 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which the heavy metal is bonded directly to
No. of patents: 53
Last issue date: 12/25/2007

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Number	Title	Issue Date
7312251	Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organoph...	12/25/2007
7247595	Supported metallocene catalyst and olefin polymerization using the same A metallocene compound represented by the following Chemical Formula 1: wherein M is a transition metal of Group 4; Cp denotes a cyclopentadienyl ring unsubstituted or su...	07/24/2007
7132491	Chain transfer reagent, free radical polymerization employing the same and resulting polymers Organometallic reversible addition-fragmentation chain transfer reagents (RAFT reagents), processes of free radical polymerization employing the same and polymers with low polydispersity index obtained thereby. The process includes polymerizing at least one monomer ...	11/07/2006
6767927	Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organoph...	07/27/2004
6750373	One-step production of 1, 3-propanediol from ethylene oxide and syngas with a cobalt-iron catalyst Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol ...	06/15/2004
6727378	Process for the production of a phosphorus-containing organic compound A process for the production of an organic phosphorus-containing product, which comprises reacting a phosphorus-containing oxide with an unsaturated hydrocarbon in the presence of a boron-containing compound at a temperature of less than or equal to 50° C. ...	04/27/2004
6576475	Assay system and novel labelled compounds for use therewith A Bis (cyclopentadienyl) metal complex of a derivative thereof is used as a label in an assay utilizing electrichemiluminescence or fluorescence detection means. The Bis (cyclopentadienyl) metal complex may comprise ferrocene or a derivative thereof which...	06/10/2003
6531618	Process for preparing water-soluble catalysts The invention relates to a process for preparing water-soluble organotin catalysts by contacting organotin compounds with polyelectrolytes and, optionally, subsequently removing the water....	03/11/2003
6517795	Process for producing hydrotalcites and the metal oxides thereof A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolyzing the resultant alcoholate mixture with water. The correspondi...	02/11/2003
6444818	Metal complexes with chelating C-, N-donor ligands for forming metal-containing films A method of forming a film on a substrate using transition metal or lanthanide complexes. The complexes and methods are particularly suitable for the preparation of semiconductor structures using chemical vapor deposition techniques and systems....	09/03/2002
6166234	Tripodal cyclopentadiene derivatives and their use Novel tripodal cyclopentadiene derivatives have the formula (I) ##STR1## where E are identical or different and are --N(R)(R), --P(R)(R), --As(R)(R), --Sb(R)(R), --OR, --SR, --SeR, --TeR, where R are identical or different and are each hydrogen, a C	12/26/2000
5990253	Indenyl compounds and catalyst components for the polymerization of olefins The invention relates to an indenyl compound of the general formula R'Ind--M--(Cp)Qk in which the symbols have the following meanings: Ind: an indenyl group R': a substituent, other than hydrogen, to the Ind group, Cp: a cyclopentadienyl group M: a transition...	11/23/1999
5959132	Mononuclear and polynuclear transition metal complexes with pentalene ligands bound to single metal atoms The invention relates to a complex compound having at least one transition metal atom, characterized in that said complex compound contains at least one pentalene or substituted pentalene ligand which is coordinated to only one single metal atom....	09/28/1999
5936051	Substituted metallocene catalyst for the (co)polymerization of olefins Metallocene complexes of a metal M selected from titanium, zirconium and hafnium, comprising at least one anionic group A containing an η5 -cyclopentadienyl ring co-ordinated with the metal M, wherein the anionic group is substituted in at lea...	08/10/1999
5776424	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalen inorganic anions There is provided a method for making a monovalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite ...	07/07/1998
5739294	Bicyclopol yazamacrocyclophosphonic acid complexes for use as contrast agents Bicyclopolyazamacrocyclophosphonic acid compounds are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization. Such complexes can be covalently attached to an an...	04/14/1998
5730951	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with polyvalent inorganic anions There is provided a method for making a polyvalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite ...	03/24/1998
5728363	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds There is provided an improved method for making synthetic hydrotalcite by first reacting powdered magnesium oxide with a high surface area, transition alumina in a solution or suspension to form a meixnerite-like intermediate. This intermediate is then co...	03/17/1998
5728366	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalent organic anions There is provided a method for making monovalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite inte...	03/17/1998
5728365	Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with divalent inorganic anions There is provided a method for making a divalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free aqueous suspension to form a meixnerite inte...	03/17/1998
5728364	Two powder synthesis of hydrotalcite and hydrotalcite like compounds There is provided an improved method for making synthetic hydrotalcite by first reacting a divalent metal compound with a trivalent metal oxide powder in a carboxylic acid-free, aqueous solution or suspension to form an intermediate. This intermediate is ...	03/17/1998
5578286	Two powder synthesis of hydrotalcite-like compounds with divalent or polyvalent organic anions There is provided a method for making a divalent or polyvalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in an aqueous suspension to form a meixnerite intermediat...	11/26/1996
5468890	Iodonium salts and process for the preparation thereof The invention concerns iodonium salts of the general formula A-I+ --B X-, in which A is a group of the general formula ##STR1## in which C is a monovalent aromatic hydrocarbon group with 6 to 14 carbon atoms or a monovalent arom...	11/21/1995
5332846	Hydroformylation process using novel phosphine-rhodium catalyst system Disclosed are bis-phosphine compounds having the general formula ##STR1## wherein: each of A1, A2, A3 and A4 is an arylene radical wherein (i) each phosphorus atom P is bonded to a ring carbon atom of A	07/26/1994
5320826	Phosphorylated materials as contrast agents for use in magnetic resonance imaging of the gastrointestinal region Methods of providing an image of the gastrointestinal region of a patient and diagnosing the presence of any tumorous tissue in that region using contrast media comprising a combination of at least one polyphosphorylated aliphatic or polyphosphorylated al...	06/14/1994
5110963	Method for making Mo₄ S₄ L₆ (C-2386) The present invention is predicated on the discovery that Mo(III) containing compounds will react with salts of a 1,1-dithioacid to form Mo4 S4 L6. Accordingly, there is provided a method for preparing compounds of the for...	05/05/1992
5099046	Method for making Mo₄ S₄ L₆ (C-2387) The present invention provides an improved method for preparing compounds of the formula Mo4 S4 L6 comprising: contacting a compound having the formula Mo2 S4 L2, wherein L is a 1,1-dithioacid l...	03/24/1992
5089536	Energy polmerizable compositions containing organometallic initiators An energy polymerizable composition and process therefore, comprising a cationically polymerizable material and a catalytically effective amount of an ionic salt of an organometallic complex cation as polymerization initiator, said ionic salt of an organo...	02/18/1992
5068426	Purification of N,N-Dialkylcarbamoylmethylphosphine oxide Crude organic solutions of N,N-dialkylcarbamoylmethylphosphine oxide compounds can be purified by treatment with a first row transition metal salt to form a complex which can be treated to regenerate a purified solution of the compound. The first row tran...	11/26/1991
5068369	Process for preparing chiral sulphoxides A process for preparing single enantiomers of chiral sulphoxides is provided. The process involves (a) reacting an achiral sulphur-containing compound, e.g. a disulphide, with a single enantiomer of a chiral template having the formula T-(CO)-CH2	11/26/1991
4952728	Process for preparation of derivatives of phosphinous acid and intermediate product used to that effect New chemical product, constituted by an organic phosphorus compound of the structure ##STR1## where Q is an N or O atom, T is an alkylene or arylene, possibly carrying substituents, or not existing, while R1 to R7, the same or ...	08/28/1990
4929767	Treatment of rhodium catalysts A process for treating an organic solution of a partially deactivated solubilized rhodium-tertiary organophosphine complex hydroformylation catalyst with an organic reagent in order to improve the extractability of rhodium therefrom into an aqueous soluti...	05/29/1990
4900852	Heavy metal salts of dithiophosphonate compounds Certain novel heavy metal salts of dithiophosphonate derivatives, particularly monoesters, may be prepared inexpensively from hindered phenol compounds and are useful as anti-oxidants for example in lubricants and/or polymer materials....	02/13/1990
4824977	Chelating ligands and catalysts and processes employing the same A hydroformylation process including contacting hydroformylation stock in a reaction zone at a temperature of from about 20° C. to about 250° C. and a pressure of from about 15 psig to about 800 psig with hydrogen and carbon monoxide wherein the catalys...	04/25/1989
4788308	Rhodium oxymetallate catalysts Complex rhodium compounds containing rhodium in combination with the ligands carbon monoxide and a plurality of triarylphosphines and have the formulae: wherein alkyl is lower alkyl (C1 to C4), X is a transition element selected from...	11/29/1988
4778905	Dinuclear and water-soluble rhodium complexes and hydroformylation catalysis therewith Novel dinuclear and water-soluble rhodium complexes, well suited as hydroformylation catalysts, as are aqueous solutions thereof, have the general formula: ##STR1## in which R and R', which are identical or different, are each a substituted or u...	10/18/1988
4730064	Heterometallic thiocubanes (C-2044) This invention relates to heterometallic thiocubane compositions containing the M21 M22 S4 cluster core and methods of making them wherein M1 is Re, V, Mo or W and M2 is Co, Cr, Cu, N...	03/08/1988
4683315	Reductive coupling of linear carbon-containing ligands via transition metal complexes The present invention is directed to high-coordination transition metal complexes, i.e., those of coordination number seven and above, and the use thereof in the room temperature/atmospheric pressure formation of carbon-carbon bonds via reductive coupling...	07/28/1987
4673753	Rhodium oxymetallate catalysts Complex rhodium compounds containing rhodium in combination with the ligands carbon monoxide and a plurality of triarylphosphines and have the formulae: wherein alkyl is lower alkyl (C1 to C4), X is a transition element selected from...	06/16/1987
4528313	Polydimethylsiloxanes having improved thermal stability Silicone compositions having improved thermal oxidative stability are disclosed. The compositions contain iron acetylacetonate, nickel acetylacetonate, cerium acetylacetonate, alpha,omega-bis(trimethylsiloxy)-polydimethylsiloxanes, and optionally, a ...	07/09/1985

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Class 556/15 - The heavy metal is bonded directly to the carbon of a -C(=X)- group, wherein X is chalcogen (e.g., cyclopentadienyl manganese dicarbonyl triphenyl phosphine, etc.)